REDHAT-BUG-2401510: Medium severity linux/kernel vulnerability
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix incomplete state save in rxerequester
If a send packet is dropped by the IP layer in rxerequester() the call to rxexmitpacket() can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state before the packet was sent so it can be resent. However, the routines that save and restore the state miss a significnt part of the variable state in the wqe, the dma struct which is used to process through the sge table. And, the state is not saved before the packet is built which modifies the dma struct.
Under heavy stress testing with many QPs on a fast node sending large messages to a slow node dropped packets are observed and the resent packets are corrupted because the dma struct was not restored. This patch fixes this behavior and allows the test cases to succeed.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2401510?
The severity of REDHAT-BUG-2401510 is classified as a medium risk vulnerability affecting the Linux kernel.
How do I fix REDHAT-BUG-2401510?
To fix REDHAT-BUG-2401510, you should apply the latest security patches provided by your Linux distribution.
Which software versions are affected by REDHAT-BUG-2401510?
REDHAT-BUG-2401510 affects specific versions of the Linux kernel that utilize RDMA functionalities.
What are the potential impacts of REDHAT-BUG-2401510?
The potential impact of REDHAT-BUG-2401510 includes interrupted RDMA packet transmission and potential performance degradation.
Is REDHAT-BUG-2401510 under active exploitation?
As of the latest information, there are no known active exploits for REDHAT-BUG-2401510, but it is advisable to patch the vulnerability.